Railgun turret
The Railgun turret is a powerful late-game turret, unlocked with cryogenic science packs. They require both power and railgun ammo to function.
Ingredients: 20× Carbon fiber100× Fluoroketone (cold)100× Quantum processor50× Superconductor30× Tungsten plate
Output: 1 per craft → 6/min (single machine, no modules)